tell your healthcare provider about all medicines you take and all of your medical conditions, including if you are pregnant or breastfeeding. most common side effects include reactions at the injection site, weight gain, swelling of your hands and feet, and vision changes. other serious side effects include low blood sugar and low potassium in your blood. get medical help right away if you experience serious allergic reactions, body rash, trouble with breathing, fast heartbeat, sweating, or if you feel faint. i would have started flexpen sooner, but i thought it would cost more. turns out it's covered by my insurance plan. thanks to flexpen, vial and syringe are just a memory. ask your doctor about novolog mix 70/30 flexpen, covered by 90% of insurance plans, including medicare. find your co-pay at myflexpen.com. >>> it's 8:00. welcome back to "cbs this morning." when the presidential candidates debate tomorrow, how much could that one night change the entire race? >>> and caroline kennedy tells us what she's learned from her father's secret tapes and how she feels when her family is in